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CVE-2026-61646— FastGPT: Shared axios SSRF guard validates only the initial URL before following redirects

Quick assessment

Affected
labring FastGPT
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

labring FastGPT是labring公司开源的一款基于大语言模型的开源知识库问答系统。 labring FastGPT 4.15.0-beta5之前版本存在服务端请求伪造漏洞，该漏洞源于共享SSRF保护仅验证初始请求URL，在将请求交由axios处理时未考虑其默认跟随重定向的行为，可能导致经过身份验证的工作流用户调用恶意URL重定向至云元数据、回环或内部服务，从而获取敏感信息。

AI Predicted 6.5 Difficulty: Easy EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
labring FastGPT < 4.15.0-beta5 affected
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I. Basic Information for CVE-2026-61646

Vulnerability Information
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Vulnerability Title
FastGPT: Shared axios SSRF guard validates only the initial URL before following redirects
Source: CVE Program / CVE List V5
Vulnerability Description
FastGPT is a knowledge-based AI application platform. Prior to 4.15.0-beta5, FastGPT's shared SSRF guard validates only the initial request URL before handing the request to axios, and axios follows redirects by default. An authenticated workflow user can configure an HTTP request node to call an attacker-controlled public URL that redirects to cloud metadata, loopback, or internal services that the guard would block on direct request, and the HTTP node returns the response body to the workflow caller. This issue is fixed in version 4.15.0-beta5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
labring FastGPT 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
labring FastGPT是labring公司开源的一款基于大语言模型的开源知识库问答系统。 labring FastGPT 4.15.0-beta5之前版本存在服务端请求伪造漏洞，该漏洞源于共享SSRF保护仅验证初始请求URL，在将请求交由axios处理时未考虑其默认跟随重定向的行为，可能导致经过身份验证的工作流用户调用恶意URL重定向至云元数据、回环或内部服务，从而获取敏感信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
labring FastGPT < 4.15.0-beta5 -

II. Public POCs for CVE-2026-61646

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III. Intelligence Information for CVE-2026-61646

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Vendor Advisories for CVE-2026-61646 (1)

Vendor Pages for CVE-2026-61646 (1)

Same Patch Batch · labring · 2026-07-15 · 5 CVEs total

CVE-2026-61644 7.7 HIGH FastGPT: /api/core/chat/record/getCollectionQuote can disclose cross-tenant dataset text d
CVE-2026-61643 5.9 MEDIUM FastGPT: workflow runtime can execute another user's private HTTP toolset
CVE-2026-61684 FastGPT: Unauthenticated cross-tenant data access via forgeable plugin-invoke JWT (default
CVE-2026-50562 FastGPT: Untrusted PR artifacts are pushed and deployed by privileged preview workflows

IV. Related Vulnerabilities

Same product: FastGPT
Same vendor: labring
Same weakness: CWE-918

V. Comments for CVE-2026-61646

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